sjoberg



(No Model.) 3 Sheets-Sheet4V 1;

V 'Y P. EGG-B 8E' A. J.; SJ'OBERG'.

ATTACHMENT FOR SEWING 0N BUTTONS.

\ PatentedDec. 5, 1882.

N. PETER r, wnminglan, D. c. V

(No Model.) 3 sheetssheer 2.V

F. EGGE 8u C. A. J. SJOBERG.

ATTACHMENT PON SEWING 0N BUTTONS.

No. 268,470.- Patented Dec. 5, 1882.

N4 FUERS. Phokrmhogmphor. washngwn. D. C.

(No Model.) 3 Sheets-Sheet 3.

RBGGE 8v C. AJ'J. SJOBERG. ATTAEMENT'POR SEWING 0N BUTTONS. 10.268.470. l Patented 1360.5, 11882.

V- m y m u 'I l ilNrrEn STATES PATENT OFFICE.

FREDERICK EGGE AND CARL A. J. SJOBERG, OF BRIDGEPORT, CONNECTICUT' SAID SJOBERG ASSIGNOR TO SAID EGGE.'

ATTACHMENT FOR SEWING ON BUTTONS.

SPECIFICATION forming part of Letters Patent No. 268,470, dated Decemberl, 1882.

Application filed April 4, 1882. (No model.)

To all whom it may concern Be it known that we, FREDERICK EGGE and C. A. J. SJOBERG, citizens of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have in. vented certain new and useful Improvements in Attachments for Sewiugon Buttous,of which the following is a specicatiomreference being had therein to the accompanying drawings.

Clur invention relates to machines for sewing buttons on material of any exible nature, and is intended as an attachment to be applied `to an ordinary sewing-machine. It is designed more especially for sewing on buttons like the i5 ordinaryshoe-button and others having an eye on the back. It may, however, be made equally useful for sewing on other kinds of buttons where there is a'bar in or across the center of the button.

Our invention consists in the details of construction and elements of combination hereinafter fully set forth, and then specifically designated in the claims.

1n order that those skilled may more fully understand the construction and operation of our improved machine, we will proceed to de scribe the same in detail, referring by -letters to the accompanying drawings, in which- Figure l is a view in perspective of our improvement attached to an ordinary sewingmachiue; Fig. 2, a central vertical longitudinal section of the same; Fig. 8, a top view, showing our improvement attached to a bedplate and adapted to be secured to a sewingmachine; and Figs. 4 and 5, detail views of the switch-cam and upper or clamping plate, respectively.

Similar letters denote like parts in the several figures.

Inmachines of this description the fabric operated upon is uniformly andr constantly shifted backand forth under the needle as the latter descends, or else it becomes necessary to use two needles or to oscillate the needlebar. VThis former (or,asitis commonly called, oscillatory) motion is usually imparted by means of a switch-cam arranged on the shai't ot' a sewing-machine, and a traveler in the channel of said cam.

Oar device is secured to an oscillator, A, 5o such as described, and in the manner shown at Figs. l and 3, so that any motion imparted to the latter will likewise ali'ect the former.

B B are spring-jaws, attached at their rear ends to the upper plate, (l, of the clamping mechanism. the convergency oftheir front ends being limited by the pins a, a. The front end of the clamping-plate C is provided with an l opening, D, Figs.3 and 5, to allow for theplay, ofthe needle as the oscillator moves to and 6o fro, and a slight indentation, b, is made in the side of this opening, leaving stock enough below so as toprovide a seat for the eye ot' the button when held between thejaws B.

The operation of our improved device for sewing on buttons is as follows: The l'ahric or other material is first clamped in position by the action of the upper or clamping plate, C. As this plate descends the shoulders E E come in contact with the material or fabric,depress ing the same out ofthe way, and thus greatly facilitating theiusertion ot the button between the jaws B. These shoulders are preferably made by forming the said upper plate, C, longer than the lower and turning over this excess of stock at about 4right angles, although projections or pins may be fastened atthe front end of said upper plate with like results. The work being properly clamped, an ordinary shoe-button is inserted between thejaws B in such a manner that the eye will rest in position within the indentation or seat b. Power is now applied to the shaft ot' the sewing'machine and the oscillator A moves to and fro, thereby causing the needle to pierce alternately within and without the eye ofthe button. When a sufficient amount ot' thread has been stitched over said eye' the clamp is raised, the work shifted, and the operation goes on as before. The connecting-threads between the several buttons may be readily cut without any danger ot' the fastenings pulling out. Thejaws B are made at the outer end slightly bellied, as seen at Fig. 3, to conform to the'shape and` contour of the body of the button, and the walls` of such belliedportion slope downward and outward, so that the action of the jaws tends to facilitate the insersieA tion ofthe button ,and to hold it against any upward movement.

What we claim as new, and desire to secure by Letters Patent, is-

1. In a machine for sewing on buttons, the spring-jaws B, fastened at their rear ends to the c'lamping-plate,the front ends converging", bellied, and inclined,.substantially as set forth and described.

2. In a machine for sewing; on buttons, the clamping-plate having an opening, D, and indentation or seat b at its outer end, in combination with the spring-jaws B,seeured to said clamping-plate, substantially as described.

3. In a machine for sewing on buttons, the upper or clamping plate of the clamping mecheos, we

anisin, having its extreme outer ends turned over to formshoulders E, substantially as set forth.

4. In a machine for sewing on buttons, a zo clamping-plate provided at its Outer end with sprii'lg-jaws B, opening,` D, indentation or seat l1, and shoulders E. substantially as hereinbe# fore set forth and described.

In testimony whereof we affix our signataires 25 in presence of two Witnesses.

FREDERICK EGGE. CARL A. J. SJOBERG.` Y

Witnesses:

W. T. HAVILAND, J osEPH A. JOYCE. 

